>2ns7B (B:) SEQRES residues msrldkskvinsalellnevgieglttrklaqklgveqptlywhvknkralldalaieml drhhthfsplegeswqdflrnnaksfrnallshrdgakvhlgtrptekqyetlenqlafl tqqgfslenalyalsavghftlgsvledqehqvakeeretpttdsmppllrqaielfdhq gaepaflhgleslirgfevqltallqiv